Baby kicks typically get noticeably stronger between 24 and 28 weeks of pregnancy, with movement frequency and intensity continuing to increase until around 32 weeks. Before that point, most pregnant people describe early movements as light flutters or swishes. After 32 weeks, kicks remain strong but the type of movement shifts as the baby runs out of room.
Early Flutters: 16 to 22 Weeks
Most people first feel their baby move between 18 and 20 weeks, though second-time parents sometimes notice movement as early as 16 weeks. First-time parents often don’t feel anything until after 20 weeks. These early sensations, sometimes called quickening, tend to feel like flutters, bubbles, or a light swishing. They’re easy to mistake for gas or digestion, and they come and go unpredictably.
At this stage, the baby is still small and its nervous system is just beginning to mature. The brain’s cortical organization, the process that wires neurons together and allows coordinated movement, starts around 22 to 24 weeks. Before that wiring kicks in, fetal movements are less purposeful and too gentle for most people to feel consistently.
The Shift to Real Kicks: 24 to 28 Weeks
Somewhere in the mid-to-late second trimester, those soft flutters give way to unmistakable kicks, jabs, and rolls. This happens because the baby is gaining muscle mass, its nervous system is forming functional connections between brain cells, and it simply has more body weight behind each movement. By 24 weeks, many people can distinguish between a kick (a sharp jab from a foot or hand) and a roll (a slower, broader movement across the belly).
This is also the window when other people can start to feel kicks from the outside. Partners or family members who place a hand on your belly are most likely to feel movement once kicks become strong enough to push visibly against the abdominal wall, which for many pregnancies happens around 24 to 28 weeks.
Peak Intensity: 28 to 32 Weeks
Movement frequency tends to increase steadily until about 32 weeks. Around 31 weeks, fetal weight gain accelerates, which is one reason kicks can feel especially frequent and obvious during this stretch. The baby is big enough to deliver powerful kicks and rolls but still has enough room in the uterus to wind up and move freely. Many parents describe this period as the most active of the entire pregnancy, with visible ripples across the belly and kicks strong enough to wake you at night.
Late Pregnancy: 33 Weeks to Birth
After 32 weeks, the total number of movements generally stays about the same, but what those movements feel like changes. With less room in the uterus, big sweeping kicks give way to pushes, stretches, and slower rolling motions. Some parents worry this means the baby is moving less, but research involving women at full term found that almost all of those with healthy babies still described fetal movements as “strong and powerful.” Half also described the movements as “large,” involving the baby’s whole body.
The key distinction: the character of movement changes near the end of pregnancy because of limited space, but the frequency and intensity should not noticeably decrease. A genuine reduction in how often or how strongly your baby moves is worth reporting to your midwife or maternity unit right away.
Why Some People Feel Kicks Later or Softer
Two common factors can delay when you notice strong kicks or make them feel muted throughout pregnancy.
Anterior placenta. If your placenta attaches to the front wall of the uterus, it sits between the baby and your belly like a cushion. People with an anterior placenta often don’t feel kicks until after 20 weeks, and those kicks can feel weaker or softer for much of the pregnancy. This is completely normal and doesn’t mean the baby is moving less. It just means the placenta is absorbing some of the impact.
First pregnancy. If you’ve never been pregnant before, you may not recognize early movements for what they are. Experienced parents tend to identify fetal movement sooner because they know what to look for. This doesn’t affect the baby’s actual strength, just your awareness of it.
Body size may also play a role. Although research suggests that people with higher BMI perceive fetal movement at similar rates to those with lower BMI, the timing of first awareness can vary. Maternal age, fitness level, and even how busy you are during the day can all influence when you happen to notice movement.
How to Track Kick Strength and Frequency
Starting around 28 weeks, you can use a simple counting method to monitor your baby’s activity. The most widely recommended approach: lie on your left side, pay attention, and count every kick, roll, jab, swish, or push. Hiccups don’t count since they’re involuntary. You’re looking for 10 distinct movements within 2 hours. Most babies hit that number well before the 2-hour mark, especially if you do this after eating.
There’s no single “normal” pattern that applies to every pregnancy. What matters most is learning your own baby’s rhythm and noticing if it changes. If you go through the full 2 hours without feeling 10 movements after 28 weeks, or if you notice a sudden change in how your baby typically moves, contact your maternity provider for evaluation. Reduced movement is associated with adverse outcomes, and early assessment makes a meaningful difference.